<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			//匿名函数可以用来模仿块级作用域
			    (function(){
			    	
			    })()
			    function outputNumbers(count){
					(function(){
						for(var i=0;i<count;i++){
				
					 	}
					})() 
					console.log(i)
				}
				outputNumbers(5)
		</script>
	</body>
</html>
